My son is 18 and is having problems keeping any solid food down.Has been going on for a little over a week since we went out of state for a couple days.Talked to our family doctor two days ago and they said to try Pepto Bismol to see if it would help.It seems to help with him getting sick after he eats but not curing it really.He is eating lighter(nothing fried etc.) but he says no matter what he eats he fulls completely full like he stuffed himself and about an hour later gets sick and then feels fine.No othe rsymptoms what so ever.